Find the highest common factor (HCF) of 56 and 84 Show your working clearly. (2) (b) Find the lowest common multiple (LCM) of 60 and 72 Show your working clearly. (2)
Exam No：4ma1-1f-que-20220521 Year：2022 Question No：IGCSE&ALevelMathematics2022IG0545
Answer:
Knowledge points:
1: Numbers and the number system
Solution:
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